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/*
* IMFS_stat
*
* This routine provides a stat for the IMFS file system.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <string.h>
#include "imfs.h"
#include <rtems/libio_.h>
#include <rtems/seterr.h>
int IMFS_stat(
rtems_filesystem_location_info_t *loc,
struct stat *buf
)
{
IMFS_fs_info_t *fs_info;
IMFS_jnode_t *the_jnode;
IMFS_device_t *io;
the_jnode = loc->node_access;
switch ( the_jnode->type ) {
case IMFS_DEVICE:
io = &the_jnode->info.device;
buf->st_rdev = rtems_filesystem_make_dev_t( io->major, io->minor );
break;
case IMFS_LINEAR_FILE:
case IMFS_MEMORY_FILE:
buf->st_size = the_jnode->info.file.size;
break;
case IMFS_SYM_LINK:
buf->st_size = strlen( the_jnode->info.sym_link.name );
break;
case IMFS_FIFO:
buf->st_size = 0;
break;
default:
rtems_set_errno_and_return_minus_one( ENOTSUP );
break;
}
/*
* The device number of the IMFS is the major number and the minor is the
* instance.
*/
fs_info = loc->mt_entry->fs_info;
buf->st_dev =
rtems_filesystem_make_dev_t( IMFS_DEVICE_MAJOR_NUMBER, fs_info->instance );
buf->st_mode = the_jnode->st_mode;
buf->st_nlink = the_jnode->st_nlink;
buf->st_ino = the_jnode->st_ino;
buf->st_uid = the_jnode->st_uid;
buf->st_gid = the_jnode->st_gid;
buf->st_atime = the_jnode->stat_atime;
buf->st_mtime = the_jnode->stat_mtime;
buf->st_ctime = the_jnode->stat_ctime;
buf->st_blksize = imfs_rq_memfile_bytes_per_block;
return 0;
}
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